Ravens defensive end Haloti Ngata was trying to sack Roethlisberger, but was able to get his left hand inside Roethlisberger’s face mask. Ngata was not penalized on the play, but the NFL fined him $15,000 for the hit to the head.

Roethlisberger was treated and returned to the game without missing any plays.

The operation was performed on Monday, and Roethlisberger is expected to play Sunday against Cincinnati. He also underwent nose surgery after being seriously injured in a June 2006 motorcycle accident in Pittsburgh.